> ## Documentation Index
> Fetch the complete documentation index at: https://docs.melo.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> The Glossary section provides clear definitions and explanations of key terms and concepts used throughout the API documentation

```mermaid theme={null}
graph TD
    P(Property)
    A1("Advert 1<br/>www.agency1.com/...")
    A2("Advert 2<br/>www.agency2.com/...")
    A3("Advert 3<br/>www.agency3.com/...")
    E11("Event 1.1<br/>Price decrease")
    E12("Event 1.2<br/>New photos")
    E31("Event 3.1<br/>Expired")   

    P --> A1
    P --> A2
    P --> A3
    A1 --> E11
    A1 --> E12    
    A3 --> E31    
```

| Concept       | Definition                                                                                                                                                                                                                   |
| ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Property      | Refers to a specific real estate unit such as a house, apartment, or commercial space. Each property can have multiple adverts, which are different listings referring to the same unit.                                     |
| Advert        | Unique listing associated with a property. It's a specific presentation or promotion of a property in the real estate market by an agency or an individual.                                                                  |
| Event         | An event is a specific occurrence or action within the system, such as the creation, update, or expiration of adverts, which can be tracked and responded to via the API.                                                    |
| Match         | A match refers to a result that fulfills a user's saved search criteria, representing a new property that meets the specific conditions defined by the user in their search.                                                 |
| Search        | A search is a user-defined entity that is saved and that allows for the real time retrieval of properties or adverts based on specific criteria, such as location, price range, or property type.                            |
| Webhook       | A webhook is a tool that allows the API to send real-time data to a specified endpoint, such as notifying a user or system when a new advert matches a saved search criteria, or when an event occurs on a monitored search. |
| lastCrawledAt | At property level, this field represents the date of the last update of the most recent advert, excluding expired ones. At the advert level, expired adverts are included.                                                   |